Put commit hooks in the Build/Scripts directory.
git commit hook
The commit-msg hook is currently hosted on https://typo3.org/fileadmin/resources/git/commit-msg.txt. It would be a good idea to put it into the Build/Scripts/ directory.
- Change link to wiki to point to contribution guide
- check license terms (ASF)
- add another pre-commit hook to check for cgl (possibly run `Build/Scripts/cglFixMyCommit.sh dryrun`)
- Update the commit hook section in the contribution docs to reflect this change
- add a post-checkout hook as suggested in the "contribution guide": https://docs.typo3.org/typo3cms/ContributionWorkflowGuide/Appendix/GeneralTopics/CommitHook.html#post-checkout-hook-for-composer-update